How To Fix 14401 - Maximum number of internal sessions has been reached

SAP Error Message - Details

• Message type: E = Error

• Message class: 14 - Task handler messages

• Message number: 401

• Message text: Maximum number of internal sessions has been reached

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 14401 - Maximum number of internal sessions has been reached ?

  The SAP error message "14401 Maximum number of internal sessions has been reached" typically indicates that the system has reached its limit for internal sessions, which are used for various background processes and user interactions. This can occur in environments with high user activity or when there are many background jobs running simultaneously.
  Causes:
  
  High User Activity: A large number of users accessing the system simultaneously can lead to the exhaustion of available internal sessions.
  Background Jobs: If there are many background jobs running, they can consume internal sessions, leading to this error.
  Configuration Limits: The system may be configured with a low limit for internal sessions, which can be insufficient for the current workload.
  Long-Running Transactions: Transactions that take a long time to complete can hold onto internal sessions longer than necessary.
  
  Solutions:
  
  
  Increase the Limit:
  
  You can increase the maximum number of internal sessions by adjusting the profile parameter rdisp/max_internal_sess. This can be done in the instance profile of your SAP system.
  To change this parameter:
  
  Go to transaction RZ10.
  Select the appropriate profile and choose to change it.
  Add or modify the parameter rdisp/max_internal_sess to a higher value.
  Save the changes and restart the instance for the changes to take effect.
  
  
  
  
  
  Monitor and Optimize Background Jobs:
  
  Review the background jobs running in the system using transaction SM37 and optimize them if necessary. Consider scheduling jobs during off-peak hours or reducing their frequency.
  
  
  
  Session Management:
  
  Ensure that long-running transactions are optimized to complete more quickly, thus freeing up internal sessions sooner.
  Encourage users to log off when they are done with their tasks to free up sessions.
  
  
  
  System Performance Tuning:
  
  Analyze system performance and resource utilization to identify bottlenecks that may be contributing to the issue. This may involve checking memory usage, CPU load, and database performance.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  RZ10: Profile maintenance.
  SM37: Monitor background jobs.
  SM50: Monitor active processes.
  
  
  SAP Documentation: Refer to SAP Help Portal for detailed documentation on system parameters and performance tuning.
  SAP Community: Engage with the SAP Community for insights and shared experiences from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the "Maximum number of internal sessions has been reached" error and improve the overall performance of your SAP system.